I just deleted the reference to it in the file. the {$I jedi-sdl.inc} line. It still compiles OK and Lazarus can parse the file and give intellisense.

I don't use GL or GLU in my project. It's totally 2D, just SDL surfaces and so on. Probably would be faster if I used GL, but I started this project years ago...

When it's closer to completion, I'll put something on my site so you can see it. probably won't be ready for the Dogfight compo though.

I hope the Lazarus guys fix the include issue soon. At the moment, it's a documented feature in the FAQ section as a common newbie trip up point.